#include "header.h"

void sum_diff( float op1, float op2, float *psum, float *pdiff );

int main()
{
    float a, b, sum, diff;

    scanf("%f %f", &a, &b);
    sum_diff(a, b, &sum, &diff);
    printf("The sum is %.2f\nThe diff is %.2f\n", sum, diff);
	
    return 0; 
}

void sum_diff( float op1, float op2, float *psum, float *pdiff ){
    *psum = op1+op2;
    *pdiff = op1 - op2;
}